:root {
    --bg: #102a43;
    --bg-alt: #243b53;
    --surface: #1f3d5a;
    --surface-soft: #2a4a68;
    --accent: #0f766e;
    --accent-2: #0d9488;
    --text: #f8fafb;
    --muted: #d9e2ec;
    --line: rgba(217, 226, 236, 0.2);
    --shadow: 0 18px 48px rgba(0, 0, 0, 0.2);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Manrope', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at top left, rgba(15, 118, 110, 0.2), transparent 30%),
        radial-gradient(circle at 85% 15%, rgba(13, 148, 136, 0.16), transparent 24%),
        linear-gradient(180deg, #0f2740 0%, #102a43 100%);
}

a {
    text-decoration: none;
}

.site-shell {
    display: flex;
    min-height: 100vh;
}

.site-sidebar {
    width: 19rem;
    flex: 0 0 19rem;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
    padding: 1.5rem 1.25rem;
    background: rgba(8, 19, 31, 0.93);
    backdrop-filter: blur(16px);
    border-right: 1px solid var(--line);
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.site-content {
    flex: 1 1 auto;
    min-width: 0;
}

.sidebar-brand {
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--line);
}

.sidebar-tagline {
    color: var(--muted);
    font-size: 0.95rem;
    margin-top: 0.75rem;
}

.sidebar-nav {
    flex: 1 1 auto;
}

.sidebar-link {
    display: block;
    padding: 0.8rem 0.95rem;
    border-radius: 0.9rem;
    color: rgba(238, 244, 251, 0.82) !important;
    font-weight: 600;
    transition: background-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.sidebar-link:hover,
.sidebar-link:focus,
.sidebar-link.active {
    color: #fff !important;
    background: rgba(255, 255, 255, 0.06);
    transform: translateX(2px);
}

.brand-mark {
    width: 2.25rem;
    height: 2.25rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 0.75rem;
    background: linear-gradient(135deg, var(--accent), #14b8a6);
    color: #ffffff;
    font-weight: 800;
    box-shadow: var(--shadow);
}

.hero {
    position: relative;
    padding: 6rem 0 4rem;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(16, 38, 59, 0.95), rgba(11, 23, 37, 0.65));
    z-index: -2;
}

.hero::after {
    content: '';
    position: absolute;
    width: 30rem;
    height: 30rem;
    right: -10rem;
    top: -8rem;
    background: radial-gradient(circle, rgba(15, 118, 110, 0.3), transparent 60%);
    z-index: -1;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.55rem 0.9rem;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.04);
    color: var(--muted);
    font-size: 0.95rem;
}

.hero h1,
.section-title {
    letter-spacing: -0.03em;
}

.hero h1 {
    font-size: clamp(2.6rem, 5vw, 4.8rem);
    line-height: 0.98;
    margin: 1rem 0 1.25rem;
}

.lead-copy {
    max-width: 42rem;
    color: var(--muted);
    font-size: 1.1rem;
}

.hero-panel,
.glass-card,
.content-card,
.timeline-card,
.faq-item,
.scan-panel {
    background: linear-gradient(180deg, rgba(16, 38, 59, 0.96), rgba(13, 28, 43, 0.96));
    border: 1px solid var(--line);
    border-radius: 1.25rem;
    box-shadow: var(--shadow);
}

.hero-panel {
    padding: 1.25rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
}

.stat-box {
    padding: 1rem;
    border-radius: 1rem;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--line);
}

.stat-box .value {
    display: block;
    font-size: 1.7rem;
    font-weight: 800;
    color: #fff;
}

.stat-box .label {
    color: var(--muted);
    font-size: 0.95rem;
}

.section {
    padding: 4.5rem 0;
}

.section-soft {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0));
}

.section-title {
    font-size: clamp(1.75rem, 3vw, 2.7rem);
    margin-bottom: 0.85rem;
}

.section-copy {
    color: var(--muted);
    max-width: 42rem;
}

.content-card,
.timeline-card,
.faq-item,
.scan-panel {
    padding: 1.5rem;
    height: 100%;
}

.content-card .icon-badge,
.scan-step .step-badge,
.feature-badge {
    width: 3rem;
    height: 3rem;
    border-radius: 0.9rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(15, 118, 110, 0.2);
    color: #99f6e4;
    font-size: 1.25rem;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.25rem;
}

.audience-card {
    padding: 1.5rem;
    border-radius: 1.25rem;
    background: rgba(255, 255, 255, 0.035);
    border: 1px solid var(--line);
    height: 100%;
}

.audience-card i {
    color: var(--accent-2);
    font-size: 1.5rem;
}

.timeline {
    position: relative;
    display: grid;
    gap: 1rem;
}

.timeline-card .date {
    color: var(--accent);
    font-weight: 800;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    font-size: 0.82rem;
}

.badge-soft {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.45rem 0.75rem;
    border-radius: 999px;
    background: rgba(13, 148, 136, 0.2);
    color: #ccfbf1;
    font-weight: 700;
}

.btn-warning {
    background: var(--accent);
    border-color: var(--accent);
    color: #ffffff;
}

.btn-warning:hover {
    background: #115e59;
    border-color: #115e59;
    color: #ffffff;
}

.btn-outline-light {
    border-color: rgba(255, 255, 255, 0.2);
}

.checklist li {
    position: relative;
    padding-left: 1.75rem;
    margin-bottom: 0.95rem;
    color: var(--muted);
}

.checklist li::before {
    content: '\f26e';
    font-family: 'bootstrap-icons';
    position: absolute;
    left: 0;
    top: 0;
    color: var(--accent-2);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.72);
}

.footer-links a:hover {
    color: #fff;
}

.site-footer {
    border-top: 1px solid var(--line);
    background: #0f2740;
}

.footer-bottom {
    border-top: 1px solid var(--line);
}

.scan-choices .btn {
    min-width: 7.5rem;
}

.scan-result {
    padding: 1.15rem;
    border-radius: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--line);
}

.accordion-item {
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.03);
}

.accordion-button {
    background: transparent;
    color: var(--text);
}

.accordion-button:not(.collapsed) {
    color: #fff;
    background: rgba(255, 255, 255, 0.03);
    box-shadow: none;
}

.accordion-button::after {
    filter: invert(1);
}

@media (max-width: 991.98px) {
    .site-shell {
        flex-direction: column;
    }

    .site-sidebar {
        width: 100%;
        flex-basis: auto;
        position: relative;
        top: auto;
        height: auto;
        border-right: 0;
        border-bottom: 1px solid var(--line);
    }

    .sidebar-nav {
        flex: 0 0 auto;
    }

    .hero {
        padding-top: 4rem;
    }

    .stats-grid,
    .feature-grid {
        grid-template-columns: 1fr;
    }
}